/*
   Copyright (c) 2011, 2012 Mizar Tools Contributors (mizartools.org)

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
/*  Contributors :
 *	2011-02-18 Marco Riccardi - initial implementation
 *  2012-04-06 Marco Riccardi - added message in DliParseException
 *
 */
package org.mizartools.dli;

public class Constructor {

	private ItemId itemId = null;

	private Constructor(){}
	
	public Constructor(ItemId itemId) throws DliException {
		if (itemId == null){
			throw new DliException();
		}
		this.itemId = itemId;
    }

	public static Constructor newInstance(String string) throws DliParseException {
		Constructor constructor = new Constructor();
		int position = string.indexOf("(");
		if (position == -1) {
			throw new DliParseException("["+string+"] is not valid in Constructor");
		}
		if (!string.substring(0, position).equals("$constructor")){
			throw new DliParseException("["+string+"] is not valid in Constructor");
		}
		constructor.itemId = ItemId.newInstance(string.substring(position+1, string.length()-1));
		return constructor;
	}
	
	@Override
	public String toString() {
		return "$constructor("+itemId.toString()+")";
	}

	public ItemId getItemId() {
		return itemId;
	}
	
}
